The G2 family of dual high-power motor driver shields features pairs of discrete MOSFET H-bridges designed to drive two large brushed DC motors. They have the form factor of an Arduino shield, so they can plug directly into an Arduino or compatible board, such as the A-Star 32U4 Prime, but they also break out all of the motor driver pins along the left side of the board to enable use as a general-purpose motor driver without an Arduino.

Four versions:

Dual G2 High-Power Motor Driver 18v22 Shield:
- Operating voltage: 6.5 V to 30 V (absolute maximum; not intended for use with 24 V batteries)
- Output current: 22 A continuous
- Current sense output proportional to motor current (approx. 10 mV/A; only active while H-bridge is driving)
- Active current limiting (chopping) with approximate default threshold of 60 A (can be adjusted lower)
Dual G2 High-Power Motor Driver 18v18 Shield
- Operating voltage: 6.5 V to 30 V (absolute maximum; not intended for use with 24 V batteries)
- Output current: 18 A continuous
- Current sense output proportional to motor current (approx. 20 mV/A; only active while H-bridge is driving)
- Active current limiting (chopping) with approximate default threshold of 50 A (can be adjusted lower)
Dual G2 High-Power Motor Driver 24v18 Shield
- Operating voltage: 6.5 V to 40 V (absolute maximum; not intended for use with 36 V batteries)
- Output current: 18 A continuous
- Current sense output proportional to motor current (approx. 20 mV/A; only active while H-bridge is driving)
- Active current limiting (chopping) with approximate default threshold of 50 A (can be adjusted lower)
Dual G2 High-Power Motor Driver 24v14 Shield
- Operating voltage: 6.5 V to 40 V (absolute maximum; not intended for use with 36 V batteries)
- Output current: 14 A continuous
- Current sense output proportional to motor current (approx. 20 mV/A; only active while H-bridge is driving)
- Active current limiting (chopping) with approximate default threshold of 40 A (can be adjusted lower)

Features:

Inputs compatible with 1.8 V, 3.3 V, and 5 V logic
PWM operation up to 100 kHz
Motor indicator LEDs show what the outputs are doing even when no motor is connected
Reverse-voltage protection
Undervoltage shutdown
Short circuit protection
Control interface allows for sign-magnitude or locked-antiphase operation
Integrated 7.5 V, 1 A switching step-down voltage regulator (can be set to output 5 V instead)
Arduino library makes it easy to get started using this board as a motor driver shield
Detailed user’s guide
Arduino pin mappings can be customized if the default mappings are not convenient
When used as a shield, the motor power supply or 7.5 V regulator output can optionally be used to power the Arduino base for single-supply operation
Can be used with an Arduino or compatible board (through shield headers) or other microcontroller boards (through 0.1″ header along the left side)

Specifications:

Package Includes:

1 x Pololu 2515 / 2516 / 2517 / 2518 Dual G2 High-Power Motor Driver Shield for Arduino

Electrical Specifications
Minimum Operating Voltage	6.5V
Maximum Operating Voltage	2515/2517-30V, 2516/2518-40V
Physical Attributes
Weight	2515-38g, 2516-18g, 2517/2518-19g
Dimensions	2.56″ × 2.02″ × 0.38″
Additional Information
Warranty